1764659 - Updatebot should be able to update wgpu Rust crate

Status: RESOLVED FIXED

(Developer Infrastructure :: Mach Vendor & Updatebot, enhancement)

Description

[Jim Blandy :jimb]

We would like to use Updatebot to update Firefox's use of the wgpu Rust crate.

Firefox's implementation of the WebGPU API is based on the wgpu Rust crate, which depends in turn on various other crates. As both the API and implementation are evolving quickly, we should be frequently importing new versions of wgpu into Firefox. I recently did an upgrade that brought in three months' work at once, and it was a pain.

Specifically, in the Firefox sources, gfx/wgpu_bindings/Cargo.toml includes dependencies on specific revisions of wgpu-core, wgpu-types, and wgpu-hal. These are all retrieved from the repository https://github.com/gfx-rs/wgpu, which has them as workspace members.

Given a revision from that repository that we wish to use, updating Firefox's use of wgpu requires two steps:

• Update the commit shas for in the [dependencies.wgc], [dependencies.wgt], and [dependencies.wgh] in gfx/wgpu_bindings/Cargo.toml.

• Run mach vendor rust --ignore-modified.

Then the tree should build in the usual way with mach build.

Although most updates will build without error, the wgpu crates do not yet have a stable API, so changes to Firefox's code are sometimes necessary. It would be nice to know this as soon as possible.

It might work nicely to check for new commits to the wgpu master branch daily.

Comment 1

[Tom Ritter [:tjr]]

Attachment: Bug 1764659: Add wgpu bindings to Updatebot r?jimb

Depends on D143765

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/c1d6ed85eff4
Add wgpu bindings to Updatebot r=jimb

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/18b126507926
Lint fix. r=fix. CLOSED TREE

Comment 4

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/c1d6ed85eff4
https://hg.mozilla.org/mozilla-central/rev/18b126507926